
Replacing FRUs
45
Thermal sensor
Microprocessor
System board
Front I/O options
Heat sink and fan
assembly
Cover presence switch
Note
To replace a component that is not in the list above, contact a Lenovo service
technician. The support phone numbers are available at: http://www.lenovo.com/
support/phone
Wi-Fi antennas
Illuminated red dot
Internal speaker
Before replacing an FRU, click the illustration of the part to check the brief procedures.